Plate 31 



1. Horned Puffin, breeding adult 



2. Black Guillemot 

 Pigeon Guillemot 



Common Murre , hatching year 



4. 



Common Murre (iJ. aalge calif ornicus) adult 

 Common Murre (U. aalge inornata) adult 

 Thick-billed Murre (U. lomvia) adult 

 Thick-billed Murre (U. lomvia) young 



9. 



